HA! What I wouldn't give for a babysitter at least once a week for a date with Mr. Ex! No dice, however. If I'm lucky, we MAY have one lined up later this week so we can go to dinner to celebrate our anniversary. Only dinner, though, I don't want to leave the new baby for long. :)
That being said...I WAS a young, single mom. I had my eldest son at 19 and I rarely if ever went out, even when I was of age. However, what you say is true...I knew a few other moms in the same boat as me, and if you didn't know them, you wouldn't know they had a child, they went out so much. :(